相关实验视频

Updated: May 6, 2026

Evaluation of Respiratory Muscle Activation Using Respiratory Motor Control Assessment RMCA in Individuals with Chronic Spinal Cord Injury

Evaluation of Respiratory Muscle Activation Using Respiratory Motor Control Assessment RMCA in Individuals with Chronic Spinal Cord Injury

Published on: July 19, 2013

在脊髓损伤后的姿势调整和功能性达到任务期间,胸部起器脊柱区域激活的变化

Joeri F L van Helden¹, Hélio V Cabral², Emma Alexander³

¹Centre of Precision Rehabilitation for Spinal Pain (CPR Spine), School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom.

Journal of neurophysiology

|January 20, 2025

概括

不完全脊髓损伤 (SCI) 个体显示直立脊柱 (ES) 肌肉的区域激活发生变化. 他们招募较低的ES来保持姿势,并在完成任务时失去离散控制,影响干的稳定性.

科学领域:

神经科学是一个神经科学.
康复医学康复医学康复医学
生物力学生物力学

背景情况:

不完整的脊髓损伤 (SCI) 通常会损害干部肌肉的意志控制,影响感觉运动通路.
传统的电肌图 (EMG) 研究显示SCI的全球,但不是区域,干部肌肉激活变化.
了解区域勃起器脊柱 (ES) 激活对于评估SCI后的功能缺陷至关重要.

研究的目的:

在不完全的SCI的个体中调查胸部起器脊柱 (ES) 的区域激活模式.
为了比较SCI和对照个体之间的姿势和多方向达到任务期间区域ES激活.
为了阐明SCI后的干部肌肉神经控制中受伤引起的改变.

主要方法:

使用高密度EMG记录胸部ES活动在21个个体不完全SCI和年龄匹配的对照.
测量EMG振幅和动力学数据 (手臂,干部,压力中心位移) 在姿势和达到任务期间.
分析了低于SCI水平的ES激活的区域差异.

主要成果:

与对照人群相比,患有SCI的个体在姿势任务期间在下胸部ES区域表现出更大的激活.
在完成任务时,SCI参与者的ES激活仅限于较小的区域,这表明失去了离散控制.
对照组在达到时 (前进与返回) 显示了相位依赖的EMG振幅差异,这些差异在SCI个体中不存在.

结论:

慢性不完整的SCI改变胸部ES的区域激活,优先招募下部区域进行姿势控制.
患有SCI的个体的功能伸展运动表明ES激活区域受限,神经选择控制受损.
结果提供了证据表明,SCI后的ES中脊椎间水平神经控制发生了改变,影响了干部的稳定性和功能.

关键词:

高密度的表面电动图谱.发动机控制器的控制器肌肉的招募肌肉的招募神经肌肉功能的神经肌肉功能姿势控制姿势控制

更多相关视频

Activity-based Training on a Treadmill with Spinal Cord Injured Wistar Rats

Activity-based Training on a Treadmill with Spinal Cord Injured Wistar Rats

Published on: January 16, 2019

Author Spotlight: Neuromotor Control and Recovery of Diaphragm Function Following Cervical Spinal Hemisection in Rats

Author Spotlight: Neuromotor Control and Recovery of Diaphragm Function Following Cervical Spinal Hemisection in Rats

Published on: June 14, 2024

相关概念视频

Muscles of the Vertebral Column

Muscles of the Vertebral Column

The back muscles that lie deep into the thoracolumbar fascia are called intrinsic or true back muscles. These muscles are divided into four layers: superficial, intermediate, deep, and deepest layers.
Superficial Layer:
The superficial layer consists primarily of the splenius muscles, which include the splenius capitis and splenius cervicis. These muscles are mainly responsible for the head and cervical spine movements, including extension, rotation, and lateral bending. The splenius capitis...

Secondary Spinal Cord Injury llI: Pathophysiology

Secondary Spinal Cord Injury llI: Pathophysiology

Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...